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why does a lump of cotton wool shrink in water?


Posted- 2021 days ago
7 Answers

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due to surface tension

 

When you put it in water, it absorbs the water and becomes heavy,so it sinks.

 

When the gravitational force becomes greater than the byuoant force, at that time, a lump of cotton wool shrink in water.

 

'cause it has many holes/pores between the cloth which absorb large amount of water. so when it gets dry, the water that evaporates bringing the cloth closer.

 

because the air in the small pores of cotton wool is repalace by water particles and thus it get heavy

 

 

because the air in the small pores of cotton wool is repalace by water particles and thus it get heavy